When we're asked to draw conformations, do we need to draw in all hydrogens? Or do we just draw the chair or boat structure with functional groups and leave out all the hydrogens? Some problems include all hydrogens and some leave them out.

It would be safer to draw out the hydrogens, but if you do, make sure to be careful what direction you draw them in. Make sure to make the axial/equatorial differences visible, with alternating up/down between each.